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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
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package com.sun.imageio.plugins.gif;
import java.util.Arrays;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.metadata.IIOMetadataFormat;
import javax.imageio.metadata.IIOMetadataFormatImpl;
public class GIFStreamMetadataFormat extends IIOMetadataFormatImpl {
private static IIOMetadataFormat instance = null;
private GIFStreamMetadataFormat() {
super(GIFStreamMetadata.nativeMetadataFormatName,
CHILD_POLICY_SOME);
// root -> Version
addElement("Version", GIFStreamMetadata.nativeMetadataFormatName,
CHILD_POLICY_EMPTY);
addAttribute("Version", "value",
DATATYPE_STRING, true, null,
Arrays.asList(GIFStreamMetadata.versionStrings));
// root -> LogicalScreenDescriptor
addElement("LogicalScreenDescriptor",
GIFStreamMetadata.nativeMetadataFormatName,
CHILD_POLICY_EMPTY);
addAttribute("LogicalScreenDescriptor", "logicalScreenWidth",
DATATYPE_INTEGER, true, null,
"1", "65535", true, true);
addAttribute("LogicalScreenDescriptor", "logicalScreenHeight",
DATATYPE_INTEGER, true, null,
"1", "65535", true, true);
addAttribute("LogicalScreenDescriptor", "colorResolution",
DATATYPE_INTEGER, true, null,
"1", "8", true, true);
addAttribute("LogicalScreenDescriptor", "pixelAspectRatio",
DATATYPE_INTEGER, true, null,
"0", "255", true, true);
// root -> GlobalColorTable
addElement("GlobalColorTable",
GIFStreamMetadata.nativeMetadataFormatName,
2, 256);
addAttribute("GlobalColorTable", "sizeOfGlobalColorTable",
DATATYPE_INTEGER, true, null,
Arrays.asList(GIFStreamMetadata.colorTableSizes));
addAttribute("GlobalColorTable", "backgroundColorIndex",
DATATYPE_INTEGER, true, null,
"0", "255", true, true);
addBooleanAttribute("GlobalColorTable", "sortFlag",
false, false);
// root -> GlobalColorTable -> ColorTableEntry
addElement("ColorTableEntry", "GlobalColorTable",
CHILD_POLICY_EMPTY);
addAttribute("ColorTableEntry", "index",
DATATYPE_INTEGER, true, null,
"0", "255", true, true);
addAttribute("ColorTableEntry", "red",
DATATYPE_INTEGER, true, null,
"0", "255", true, true);
addAttribute("ColorTableEntry", "green",
DATATYPE_INTEGER, true, null,
"0", "255", true, true);
addAttribute("ColorTableEntry", "blue",
DATATYPE_INTEGER, true, null,
"0", "255", true, true);
}
public boolean canNodeAppear(String elementName,
ImageTypeSpecifier imageType) {
return true;
}
public static synchronized IIOMetadataFormat getInstance() {
if (instance == null) {
instance = new GIFStreamMetadataFormat();
}
return instance;
}
}